asn.dev

Observed topology

AS25394 MK-NETZDIENSTE-AS

Residential RIPE Cable/DSL/ISP

Upstreams 28 carry this network
Downstreams 33 this network carries
Adjacent (IPv4) 62
Adjacent (IPv6) 34
Upstream graph Who carries AS25394, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS25394 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 28

Networks observed carrying traffic for AS25394: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv6481
AS6939Hurricane Electric LLCTransitIPv4 IPv6342
AS2914NTT America, Inc.TransitIPv4 IPv6325
AS3320Deutsche Telekom AGMobileIPv4 IPv670
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv658
AS24482SG.GSHostingIPv4 IPv632
AS401753BIXCE IncUnclassifiedIPv4 IPv632
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv631
AS174Cogent Communications, LLCTransitIPv430
AS57821Nonattached Network e.V.UnclassifiedIPv4 IPv630

All 28 upstreams →

Transit

Downstream networks

All 33

Networks for which AS25394 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS59790Marco Bungalski GmbHResidentialIPv4 IPv6454
AS206423binsec systems GmbHUnclassifiedIPv4 IPv6394
AS41723Jens Christian Schneeweiss trading as Technische SystemprogrammierungUnclassifiedIPv4 IPv6285
AS9188InfoServe GmbHHostingIPv4 IPv6232
AS41163RIZ IT MOTION GmbHUnclassifiedIPv4 IPv6189
AS209981System Crew GmbHUnclassifiedIPv4188
AS211909Hope Media Europe e.V.UnclassifiedIPv4184
AS9197becom Systemhaus Verwaltungs-GmbHUnclassifiedIPv4 IPv6163
AS20792VISTEC Internet Service GmbHUnclassifiedIPv4 IPv6148
AS31147Inline Internet Online Dienste GmbHHostingIPv4124

All 33 downstreams →

Adjacency

Adjacent networks

All 66

Every AS seen directly next to AS25394 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,324
AS6939Hurricane Electric LLCTransitIPv4 IPv61,005
AS2914NTT America, Inc.TransitIPv4 IPv6881
AS59790Marco Bungalski GmbHResidentialIPv4 IPv6496
AS206423binsec systems GmbHUnclassifiedIPv4 IPv6394
AS174Cogent Communications, LLCTransitIPv4 IPv6333
AS41723Jens Christian Schneeweiss trading as Technische SystemprogrammierungUnclassifiedIPv4 IPv6285
AS9188InfoServe GmbHHostingIPv4 IPv6232
AS25560rh-tec Business GmbHHostingIPv4 IPv6192
AS41163RIZ IT MOTION GmbHUnclassifiedIPv4 IPv6189

All 66 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.